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The ACCUPRO QA-2 M16 is a quick-change tapping adapter designed to connect M16 taps to compatible tapping heads and machine spindles in production machining environments. Built to DIN 376 standards, it accepts a 12 mm tap shank diameter and a 9 mm tap square, providing a secure, repeatable drive connection during tapping operations. The adapter features an overall length of 46 mm (approximately 1.81 inches) and a flange diameter of 48 mm (approximately 1.89 inches), with a projection of 11 mm (0.4331 inches) and a tap depth of 30 mm (1.1811 inches). Machinists and toolroom technicians install this adapter in CNC machining centers, drill presses, and tapping machines where fast tool changes and accurate tap alignment are required.
This adapter is suited for use in both job shop and production environments where M16 threading operations are performed on steel, cast iron, aluminum, and other machinable materials. It fits into the Series WE 2 quick-change system, making it compatible with standard WE 2 tapping heads. The quick-change design reduces changeover time between tap sizes, supporting high-volume threading workflows. Coolant-through capability is not supported by this adapter.
Designed for use with Series WE 2 quick-change tapping systems and M16 tap sizes conforming to DIN 376 shank specifications.
Installation should be performed by a qualified machinist or toolroom technician familiar with quick-change tapping systems. Ensure the machine spindle is fully stopped and all energy sources are locked out before inserting or removing the adapter. Verify that the tap shank diameter and square size match the adapter specifications before assembly. Follow the tapping head manufacturer guidelines for proper engagement and retention of the adapter in the quick-change collet.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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